4. Yes, There Is a Staff

5. The Current Owners Are Aristocrats

No, they're not the Lord and Lady Grantham, but the owners do have titles: George Herbert is the 8th Earl of Carnarvon, and his wife, Lady Fiona, pictured here, is the Countess of Carnarvon. (Lady Almina, an English heiress and a former Countess of Carnarvon, served in part as the basis for Downton Abbey's Lady Cora. In fact, Lady Fiona is a historian and has written a biography of her predecessor.)

6. The Real-Life Furnishings Often Appear on Screen

You may recognize this room as Lord Grantham's study, but it's the castle's real library. Since Highclere's interiors are so well-suited to the show's needs, many scenes are filmed in the castle's rooms with the actual furnishings in place. George Herbert, 8th Earl of Carnarvon, is shown here amongst the 5,650 books.

9. There Are 50-80 Bedrooms

10. There's an Egyptian Exhibition Inside

This likeness of Egyptian boy king Tutankhamun is on display in Highclere Castle. Why, you ask? Well, the 5th Earl of Carnarvon was also a renowned explorer who discovered the 3200-year-old tomb of King Tut along with fellow explorer Howard Carter in 1922.

11. The Grounds Are 6,000 Acres

12. You Can Rent It for Events!

Wanna have a wedding or a corporate event at Highclere? The site fee for the rental is around $23,000 and helps finance upkeep on the home and grounds. But you can't put a price on getting to play Lady Mary for a day, can you?